I don't know if anyone remembers this but once upon a time, Mika scribbled on the wall between our rooms with black ball point ink. At first I thought they were pencil marks and so as punishment, I got Mika to rub it off with his eraser but to no avail. After trying everything I had, my paint began to thin. So I simply rectified it by taking out the chest of drawers from the kids' room and put that against the wall. At that time, even the internet couldn't help me.
Anyway, now guess what? There's finally a way to get rid of the pen marks. Apparently pantene pro-v hairspray works like a charm. :) Definitely will be trying that once I get myself that hairspray.
Read more about the tip from the link below: